TY  - JOUR
A1  - Herold, Christoph
A1  - Kittiratpattana, Apiwit
A1  - Kobdaj, Chinorat
A1  - Limphirat, Ayut
A1  - Yan, Yupeng
A1  - Nahrgang, Marlene
A1  - Steinheimer, Jan
A1  - Bleicher, Marcus
T1  - Entropy production and reheating at the chiral phase transition
T2  - Physics Letters B
N2  - We study the production of entropy in the context of a nonequilibrium chiral phase transition. The dynamical symmetry breaking is modeled by a Langevin equation for the order parameter coupled to the Bjorken dynamics of a quark plasma. We investigate the impact of dissipation and noise on the entropy and explore the possibility of reheating for crossover and first-order phase transitions, depending on the expansion rate of the fluid. The relative increase in  is estimated to range from 10% for a crossover to 100% for a first-order phase transition at low beam energies, which could be detected in the pion-to-proton ratio as a function of beam energy.
KW  - Chiral phase transition
KW  - Nonequilibrium dynamics
KW  - Heavy-ion collisions
Y1  - 2019
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/54662
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-546629
SN  - 1873-2445
SN  - 0370-2693
VL  - 790.2019
SP  - 557
EP  - 562
PB  - Elsevier
CY  - Amsterdam [u.a.]
ER  -